EP 1654056 A1 20060510 - METHOD FOR PREPARING MICROCAPSULE BY MINIEMULSION POLYMERIZATION
Title (en)
METHOD FOR PREPARING MICROCAPSULE BY MINIEMULSION POLYMERIZATION
Title (de)
VERFAHREN ZUR HERSTELLUNG VON MIKROKAPSELN DURCH MINIEMULSIONSPOLYMERISATION
Title (fr)
METHODE DE PREPARATION D'UNE MICROCAPSULE PAR POLYMERISATION EN MINI-EMULSION
Publication
Application
Priority
- KR 2004001644 W 20040703
- KR 20030045056 A 20030703
- KR 20030055845 A 20030812
- KR 20030077920 A 20031105
- KR 20040003651 A 20040119
Abstract (en)
[origin: WO2005002719A1] Provided is a method for preparing uniformly sized and shaped, mono-dispersed microcapsules using miniemulsion polymerization. In microcapsules prepared by the method, a liquid or solid core encapsulated by a polymer shell has 10 to 80 % by volume of the microcapsules. Since miniemulsion particles produced at an early stage of the method are stable, an organic material which is well dissolved in monomer particles and has a higher interfacial tension with water, relative to the polymer shell, can be uniformly positioned in polymer particles. Furthermore, when a crosslinking agent is added during the polymerization, single-core microcapsules can be obtained. In addition, use of an oil-soluble initiator can prevent formation of secondary particles and addition of a secondary initiator during the polymerization can increase the yield of the uniformly sized and shaped microcapsules.
IPC 1-7
IPC 8 full level
B01J 13/14 (2006.01); C08F 2/24 (2006.01); C08J 3/12 (2006.01)
CPC (source: EP US)
B01J 13/14 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005002719 A1 20050113; CN 1816389 A 20060809; EP 1654056 A1 20060510; EP 1654056 A4 20070808; JP 2007528286 A 20071011; US 2006281834 A1 20061214
DOCDB simple family (application)
KR 2004001644 W 20040703; CN 200480019016 A 20040703; EP 04774070 A 20040703; JP 2006518540 A 20040703; US 56352304 A 20040703